[Washington Post opinion from Stephen Stromberg] President Obama began his State of the Union address Tuesday night by threatening Congress. And, on global warming, that’s a good thing....He may also get some political help from the extreme weather lately.

The World Meteorological Organization (WMO) said it would not be clear for several weeks whether the ozone hole, which is expected to continue growing until early October, would be larger than its record size in 2006.